Mold.



No. 784,701. PATENTED MAR. 14, 1905.

J. B. 'PETRIR A W WtnwE/J 5 d- Inventor,

WMe-F t'tomegs No. 784,701. 1111121112511 M1111. 14, 1905..

J. B. PETRIE.

MOLD.

APPLIOATION FILED MAY 12. 1904. RBNEWBD ma. F1.1905.

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Witness@ I'ventor,

W bg y Fittomegs UNITED STATES Patented March 14, 1905.

PATENT OEEICE.

MOLD.

SPECIFICATION forming part of Letters Patent No. 784,701, dated March14, 1905. Application led May 12, 1904. Renewed February 7,1905. SerialNo. 244,568.

.To all whom it may concern.-

Be it known that I, JOHN B. PETRIE, a citizen of the United States,residing at Celina, in the county of Mercer and State of Ohio, haveinvented a new and useful Mold, of which the following is aspecification.

My invention relates to molds designed especially for use inconstructing cement or other artificial-stone building-blocks, and hasfor its objects to produce a comparatively simple inexpensive device ofthis character which may be employed for producing either straight orangle blocks and one in which the contour and design of the faces of theblocks may be widely varied.

With these and other objects in view the invention comprises the novelfeatures of construction and combination of parts more fully hereinafterdescribed.

In the accompanying drawings, Figure 1 is a perspective view of a moldembodying the invention. Fig. 2 is a horizontal sectional elevation ofthe same. Fig. 3 is a vertical longitudinal section taken on the line 33 of Fig. 2. Fig. 4 is a vertical transverse section on the line 4 4 ofFig. 2. Fig. 5 is a vertical longitudinal section of a mold for castingangle-blocks. Fig. 6 is a vertical transverse sectional View of the sameon the line 6 6 of Fig. 5. Fig. 7 is a perspective view of theadjustable member for producing angle-blocks. Fig. 8 is a perspectiveview of a block.

Referring to the drawings, it will be seen that my improved moldcomprises side walls 1, end Walls 2, and a bottom 3, the upper or top ofthe mold being open to permit filling of the mold with the plasticmaterial.

Upon the outer faces of the sides 1 and extending transversely thereofare end cleats 4, adapted for engagement by retaining members or clamps5 for holding the parts of the mold in casting position. These clampswhich in practice extend horizontally and transversely across the ends2, have inwardly-pro-t jecting angular portions or armsV 6, provided attheir outer terminals with inturned fingers 7, which engage the cleats4.

The sides 1 have formed or otherwise provided on their inner faces andin alinement a plurality of filling-blocks or primary cores 8,

spaced one from another,l as at 9, said'spaces 9 constituting seats forthe ends of hollow removable supplemental cores 10, which when incasting position extend transversely of thel mold between the sides 1,there being provid ed on the inner faces of ends 2 auxiliary blocks orcores 11, extended transversely of the mold between the sides 1 and inalinement with the cores 8 and 10. The hollow cores 10 are preferablyformed from sheet metal bent into form, as shown, and having freeoverlapping portions 12, whereby they are susceptible of transverseexpansion and may be secured in position in the mold by retainingmembers 13 in the form of wedges inserted longitudinally through thecores.

The bottom 3 is made removable from the mold and engaged therewith byseating its marginal edges in suitable grooves or ways' 14 15, formedfor the purpose respectively upon the inner faces and adjacent to thenormally lower edges of the sides and ends. When the mold is employedwith this bottom and the various cores above described in position,therewill be produced a hollow block 16, such as is represented in Fig. 5 andcomprising a pair of parallel solid portions or walls 17, having smoothouter faces and connected yat intervals by integral homogeneous webs orportions 18. /Vhen, however, it is desired to produce a blockv the outerface of one of the walls 17 of which will be of fanciful design or inimitation of what is known as rockpaste, the bottom 3 will be removedand there will be substituted for the latter a supplemental bottom 19,(indicated by dotted lines in Fig. 3.) This supplemental bottom, whichmay be cast from any suitable material, pressed from sheet metal, orotherwise formed, bears upon its inner face in intaglio the appropriatedesign to be reproduced upon the face of the block, it being understood,of course, that the bottom 19 has formed thereon marginal iianges orportions for engagement with the grooves 14 15. For producing upon thecompleted block an end face of suitable design 1 arrange within the molda face-producing member or device 20,comprising a primary section 21 inthe form of an open rectangular frame and a secondary section 22 in theform IOO of a sheet-metal plate pivotally connected to the frame Q1,preferably by means of hinges 23, whereby said sections may be adjustedat any desired angle relative one to the other. The frame 21 is providedat its normally lower edge with a pair of oppositely-projectingtrunnions 24, adapted to engage suitable sockets or seats in theadjacent sides of the mold, whereby the frame is pivoted within thelatter, while upon the outer end of section 22 is secured a rod 25, theends of which project transversely beyond the edg'es of the section forengagement with suitable curved guide' ways or slots Q6. provided incurved strapmetal members 27, secured at their ends to the sides of themold and arching upwardly above the latter, the projecting ends of therod 25 being threaded for the reception of clamping-screws 28, wherebythe device 2() may be lixed against movement. frame Q1 is adapted forthe reception of a removable hollow shcet-metal die 29, having stampedor otherwise produced therein, as in the instance of the supplementalbottom 19, the desired fanciful or rock design to be imparted to thefinished block. It is to be understood that in practice the device willbe equipped with a series of dies Q9, varying in pattern and adapted tobe interchanged at will. :Itis further to be noted thatin practice thedevice 2O may be adjusted for imparting to the end of the block theproper degree of angularity, which may be varied at will, and that oneof the angular faces of the block may be given the stone-face design, asabove explained.

From the foregoing it is apparent that I The open produce a simpleinexpensive device admirably adapted for the attainment of the ends inview,it being understood that minor changes may be resorted to withoutdeparting from the spirit of the invention.

Having thus described the invention, what is claimed is- 1. Thecombination with a mold, of a facing memberdisposed therein andcomprising a pair of sections pivotally connected, one of the sectionsbeing -pivoted to the mold, and means for adjusting said sections tovary their angular relation to each other and to the mold.

Q. The combination With a mold, of a facing' member comprising' an openframe pivotally mounted in the mold, a pattern-die removably seatedwithin the frame, a plate pivotally connected with the latter, and meansfor adjusting the platerelative to the frame to vary their angularrelation.

3. The combination with a mold provided with guideways` of a facingmember disposed in the mold and comprising a primary section pivotallyconnected with the latter and a secondary section pivotally connectedwith the primary section, and devices carried by the secondary sectionfor travel in the guideways to vary the angular relation of thesections. 1

ln testimony that I claim the foregoing as my own l have hereto aHiXedmy signature in the presence of two witnesses.

JOHN B. PETRIE.

Witnesses:

R. B. LANDFAIR, W M. CoUa'rNnR.

